Re: [Histonet] hard paraffin additive

From:

"Sarah Jones"

Thanks for your reply Gayle. From the info you gave, I found piccolyte
on the Hercules web site. Still looking for the J of H article.
Wouldn't paraffin hardness be a factor of melting point, with the higher
melting point being the harder paraffin? Thanks, Sarah
>>> Gayle Callis 7/21/2004 4:11:05 PM >>>
Tissue Prep 2 is hard but its melting point is not that high, and check
with Richard Allan - I think they have one also.
I think you were thinking of piccolyte, a resin that dissolves in the
melted paraffin. We add this to paraffin milleniums ago, before
paraffin
technology and additives improved. It made the paraffin supersticky
plus
it was a total pain to deal with, a huge mess. I recall the company
that
made it was called Hercules Corp, I am not sure you can even get it
anymore. It come in huge bags and big chunks in the bag.
There is a publication on this resin in J of Histotechnology back a few
years. Personally, you should try to find one ready to go to save
time. Surgipath has a blue ribbon paraffin, check with them also.
At 02:06 PM 7/21/2004, you wrote:
>What is the hardest paraffin on the market? I've found Gold Standard
>Peel-A-Way with a melting point of 62-64 degrees C. Does anyone have
>any comments about the Gold Standard paraffins? Years ago, a lab
used
>some sort of additive to their paraffin for bone that made the block
>yellow in color. Does anyone know what that could have been. I
believe
>it was something like picrotin? Ring any bells? Thanks, Sarah
>
>Sarah Jones HT(ASCP)
>Dept. of Vet. Anatomy & Public Health
>Histology Lab
>Texas A&M University
>College Station, TX 77843-4458
>phone: 979-845-3177
>fax: 979-458-3499
>
>
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Gayle Callis
MT,HT,HTL(ASCP)
Research Histopathology Supervisor
Veterinary Molecular Biology
Montana State University - Bozeman
PO Box 173610
Bozeman MT 59717-3610
406 994-6367 (lab with voice mail)
406 994-4303 (FAX)
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